Manga Saving 80,000 Gold in Another World for my Retirement

The main character is an 18-year-old girl who lost her entire family in an accident. Her life will also end extremely tragically, since she will fall off a cliff, after which she will be transported to a parallel world, which in terms of development level resembled medieval Europe. Now the girl will try to live her life so as not to spoil the course of the development of local history at the expense of her knowledge, but she is not going to restrain herself in anything! Now she wants to live a truly happy life without any restrictions. However, she will have to face a lot of problems. Moreover, she does not even suspect how dangerous her knowledge is! However, the girl has solutions for any potential problems.